'\" te
.\" Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
.\" Copyright 1989 AT&T
.TH what 1 "23 Mar 2011" "SunOS 5.11" "User Commands"
.SH NAME
what \- extract SCCS version information from a file
.SH SYNOPSIS
.LP
.nf
\fBwhat\fR [\fB-s\fR] \fIfilename\fR...
.fi

.SH DESCRIPTION
.sp
.LP
The \fBwhat\fR utility searches each \fIfilename\fR for occurrences of the pattern \fB@(#)\fR that the \fBSCCS\fR \fBget\fR command (see \fBsccs-get\fR(1)) substitutes for the \fB@(#)\fR ID keyword, and prints what follows up to a \fB"\fR, \fB>\fR, \fBNEWLINE\fR, \fB\e\fR, or \fBNULL\fR character.
.SH OPTIONS
.sp
.LP
The following option is supported:
.sp
.ne 2
.mk
.na
\fB\fB-s\fR\fR
.ad
.RS 6n
.rt  
Stops after the first occurrence of the pattern.
.RE

.SH EXAMPLES
.LP
\fBExample 1 \fRExtracting SCCS version information
.sp
.LP
If a C program in file \fBprogram.c\fR contains

.sp
.in +2
.nf
char sccsid[\|] = "\|@(#)identification information\|";
.fi
.in -2
.sp

.sp
.LP
and \fBprogram.c\fR is compiled to yield \fBprogram.o\fR and \fBa.out\fR, the command:

.sp
.in +2
.nf
example% \fBwhat program.c program.o a.out\fR
.fi
.in -2
.sp

.sp
.LP
produces:

.sp
.ne 2
.mk
.na
\fB\fBprogram.c\fR:\fR
.ad
.RS 14n
.rt  
identification information
.RE

.sp
.ne 2
.mk
.na
\fB\fBprogram.o\fR:\fR
.ad
.RS 14n
.rt  
identification information
.RE

.sp
.ne 2
.mk
.na
\fB\fBa.out\fR:\fR
.ad
.RS 14n
.rt  
identification information
.RE

.SH EXIT STATUS
.sp
.LP
The following exit values are returned:
.sp
.ne 2
.mk
.na
\fB\fB0\fR\fR
.ad
.RS 5n
.rt  
Any matches were found.
.RE

.sp
.ne 2
.mk
.na
\fB\fB1\fR\fR
.ad
.RS 5n
.rt  
No matches found.
.RE

.SH ENVIRONMENT VARIABLES
.sp
.LP
See \fBenviron\fR(5) for descriptions of the following environment variables that affect the execution of \fBwhat\fR: \fBLANG\fR, \fBLC_ALL\fR, \fBLC_CTYPE\fR, \fBLC_MESSAGES\fR, and \fBNLSPATH\fR.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Availabilitydeveloper/build/make
_
Interface StabilityCommitted
_
StandardSee \fBstandards\fR(5).
.TE

.SH SEE ALSO
.sp
.LP
\fBsccs\fR(1), \fBsccs-admin\fR(1), \fBsccs-cdc\fR(1), \fBsccs-comb\fR(1), \fBsccs-delta\fR(1), \fBsccs-get\fR(1), \fBsccs-help\fR(1), \fBsccs-prs\fR(1), \fBsccs-prt\fR(1), \fBsccs-rmdel\fR(1), \fBsccs-sact\fR(1), \fBsccs-sccsdiff\fR(1), \fBsccs-unget\fR(1), \fBsccs-val\fR(1), \fBsccsfile\fR(4), \fBattributes\fR(5), \fBenviron\fR(5), \fBstandards\fR(5)
.SH DIAGNOSTICS
.sp
.LP
Use the \fBsccs-help\fR command for explanations of SCCS commands. See \fBsccs-help\fR(1).
.SH BUGS
.sp
.LP
There is a remote possibility that a spurious occurrence of the \fB@(#)\fR pattern could be found by \fBwhat\fR.